package com.tangdi.production.mpaychl.service.impl.bailipay.util;

import java.security.MessageDigest;

public class MD5 {
    private static final String hexDigits[] = {
            "0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
            "a", "b", "c", "d", "e", "f"
    };

    private static String byteArrayToHexString(byte b[])
    {
        StringBuilder resultSb = new StringBuilder();
        for (byte aB : b) resultSb.append(byteToHexString(aB));
        return resultSb.toString();
    }

    private static String byteToHexString(byte b)
    {
        int n = b;
        if(n < 0)
            n += 256;
        int d1 = n / 16;
        int d2 = n % 16;
        return hexDigits[d1] + hexDigits[d2];
    }

    public static String MD5Encode(String origin)
    {
        String resultString = null;
        try
        {
            resultString = origin;
            MessageDigest md = MessageDigest.getInstance("MD5");
            resultString = byteArrayToHexString(md.digest(resultString.getBytes()));
        }
        catch(Exception ignored) { }
        return resultString;
    }
}
